Home > DIY > M-Class > W166 M-Class (2012-Present) > Fuse Relays M-Class W166 2012-Present Mercedes-Benz ML 250 350 400 550 63 GLE AMG
w166 ml class benz gle fuses location chart

Fuse Relays M-Class W166 2012-Present Mercedes-Benz ML 250 350 400 550 63 GLE AMG

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Trying to find the fuse box location on your Mercedes-Benz? Whether looking for the cigarette ligher, radio , COMAND or Navigation fuse location, here you will find all of them.

Location of the fuse box panels on Mercedes-Benz?

  • Engine Bay Fuse Box (Passenger Side)
  • Engine Bay prefuse Box ( Engine bay, by the hood hinge, pass. side)
  • Fuse box in the interior of vehicle. Side of dash on the pass. side.
  • Prefuse box under the passenger seat.
  • Rear fuse box, by the rear seat.
  • Fuse box for battery protection. By rear battery in trunk, passenger side.

Fuse Types Used on Mercedes-Benz

The ATO and MAXI fuses are installed on the fuse box panels. All these fuses can be purchased on Amazon, links provided below. They are inexpensive when purchased online.

Fuse Guide Applications

Model:ML350 ML400 ML550 ML63 AMG ML250 Diesel
Years:2012 2013 2014 2015 2016
Chassis:W166, GLE
Make:Mercedes-Benz

Interior Fuse Box -Dashboard, Passenger Side

w166 fuse box interior location

Interior fuse box is located on the side of dash. You will find the fuse box if you look at passenger side of dash. A plastic cover can easily be removed. Use a Dash Trim Removal Tool to avoid damaging the dashboard.

Fuses located in the dashboard.

FuseLocation, Purpose, DesignationAmpere
10Ignition Lock7.5
11Steering column10
12Instrument cluster5
13Blower fan air conditioner15
14Connector5
15Upper control panel5
16-18not used
19Air Conditioner15
20Steering column5
21Audio / Radio / COMAND /Stereo5
22not used

Fuse and relay box under the rear seat

w166 fuse location chart

To access this fuse box you will need to fold the rear passenger seat forward. Under the seat you will see a box which has the relays and fuses inside. To access the fuses, press on the tabs of the front of the box, and lift up the panel cover.

List of fuses under the rear seat. Here you will find fuses F100 to F157.

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FuseFunction, Purpose, DesignationAmpere
100Radio, COMAND, Navigation, Stereo DVD, Nav5
101Trailer Hitch20
102Driver Seat Controls7.5
103Passenger Seat Control7.5
104Telephone / Antenna Amplifer5
105Navigation5
106Lift gate5
107-109Not used
110AdBlue for diesel engines5
111Trailer Hitch Connection15
112Fuel Electronics5
113Parking brake5
114Exterior lights5
115Trailer hitch5
116Distronics plus, Blind Spot Assist, Active Lane Keeping SENSORS5
117Night View Assist5
118Not used
119Transfer Case5
120Fuel Sensor5
121-123Not Used
124Brake Control Conector30
125Not used
126Trailer Hitch15
127Driver seat Controls30
128Trailer Recognition20
129Passenger Seat Controls30
130Trailer Recognition20
131Not Used
132Fuel System25
133Stationary Heater5
134Seat occupancy Sensor, child sensor, front passenger5
135Light bulb glove compartment5
136SRS, Airbag7.5
137Camera, Toll Conection15
138Anti-roll system, car stabilization15
139Not used
140AdBlue System for Diesel Vehicles7.5
141AdBlue System for Diesel Vehicles15
142AdBlue System for Diesel Vehicles20
143Not used
144Not used
145Cup Holder / Temperature7.5
146Rear window heater30
147Radio / Comand / Audio / Navigation30
148Cigarette Lighter / Output15
149Not used
150Outlet 12 volt back / trunk / cargo area20
151Outlet back seat, socket 12 volt20
152Control Unit N10/830
153115 Volt Outlet fuse – AC Converter25
154Rear ligt gate40
F157Circuit 15R115

Relays under the rear seat

RelayPurpose
APower Outlet
BRear window heater relay
CBackup
ECircuit 15
FRear window wiper
GCircuit 15R1
HNot used
IBackup

Engine Compartment Fuse Box

w166 m-class gle fuse box location engine bay

A fuse and relay box is located in the engine bay on the passenger side. To access this panel, open the hood and look on the left side of the engine. You will see the fuse box, right behind the headlight. Remove the fuse cover by pressing on the locking tabs. Here you will find fuses F201 to F241.

FusePurpose, Function, DesignationAmpere
201Not used
202Stationary Heater20
203Alarm, Antitheft System5
204ESP25
205Horn15
206-212Not used
213Engine Electronics7.5
214Engine Electronics15
215Radiator Actuator, Connector15
216Engine Compartment Electrical, Engine Mount15
217Electrical Connector20
218Not Used
219PAir cooler pump10
220-228Not used
229Left headlight7.5
230ESP Electronic Stability Program5
231Right headlamp7.5
232Tranmission control unit15
233Bi-xenon head light lamp, intelligent light15
234DISTRONIC, Active Blind5
235Wipers20
236Not used
237Intellignet module, Direct Select30
238AIRMatic Air Suspension, Adaptive Damping System40
239Windshield wiper motor30
240Starter Motor30

Resources and useful links.

Here is a list of useful resources related to the fuses and relays on the Mercedes-Benz M-Class W166 and GLE. These are external links.

What fuse type do I need to replace a blown fuse?

Your Mercedes-Benz uses Automotive Blade Fuse Type. A box of 100 fuses which include all the different ampere ratings that you need cost less than $20 on Amazon.

  • fuse amere ratingWhen replacing blown fuses, make sure to use the same ampere rating fuse. The fuse rating is written on the fuse. You can verify that you are using the correct fuse, by making sure the fuse colors for the blown fuse and the new fuse match. This indicates the same ampere rating.
  • Make sure to properly close the fuse box cover and lock the tabs properly. This is very important to avoid any moisture getting inside the fuse box. The fuse box panel has a seal that is designed to keep water and moisture out of the box.

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